Opticron Adventurer Spotting scope

Released in 2010 by Opticron, and aimed to help fill the gap between the Budget Piccolo scope and the IS50,60,70. I will start by saying this is not an Opticron Piccolo 60mm spotting scope with a twist eye cup. This is completely different scope with better optics.

Specs 15-45×60. Fully coated optics. Although not mentioned, I believe it is fully waterproof. Comes with carry case and table top tripod.

Build quality is much better than the price suggests. The twist eye cup feels like it has been borrowed a much more expensive scope. Focusing and the zoom are both smooth in operation.

Unlike many budget scopes, I found I the eye relief long enough to use with spectacles on. Even at 45x I was getting full screen wearing glasses.

As for the optics.  Well as the saying goes You buy a £109 scope, and you will get a £109 view.This is the case. Compared to the more expensive Opticron scopes you do not get a picture window wide field of view. What you do get however is remarkably good contrast and clear colours throughout the zoom range. There is a slight yellow cast around the edges, but for this price you should,nt be disappointed.

You will be hard pushed to get a better scope in this price range. If £109 is your limit, go for it.

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What does Exit Pupil means

Hold your pair of binoculars as you would normally, but away from your eyes.

You will notice a small white circle of light in the eyepiece. This could be anything from 2 – 7mm typically. As a rule of thumb, the wider this aperture, the brighter the image and in theory better low light performance.

So how do you work out the exit pupil of your binoculars, spotting scope or telescope ?. You simply divide the width of the objective lens by the magnification. For example a 10×50 pair (50 divided by 10) = 5mm.  A small pair of 10×25 will have a small 2.5mm exit pupil. So as a result of this, is that although both will perform well in bright Sunshine, but the 10x50s will give better low light observations.

Summing up, if you are looking for a pair of 40-50mm binoculars for low light, astronomy, go for a set with an exit pupil of 5 – 7mm. Examples are 8×42, 8×56, 7×50, 10×50, 8.5×50.

Definatley go for Porro Prism binoculars for astronomy. Pound for pound you get a lot more for your money. Plus the simpler design of the prisms means the light travels though less glass to reach your eye.

There are exceptions to the rule. Some high end 10×25 binoculars such as Swarovski will give exceptional low light results with a exit pupil of just 2.5mm. However you will pay a high price for this.

From my own point of view, although many forums and magazines will recommend 10x50s for astronomy, I personally prefer 7x50s. These are much more easy to hand hold for astronomy.

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Opticron Aurora BGA Binoculars

 

David Lindo – August 2008

I have a very simple view on binoculars. I liken using them to driving cars; they have to be easy to use, feel good in your hands and enable you to see things in a different light. Oh and of course, they simply have to look good. You want people to be envious of you and wish they too could have a pair of bins like yours.

The first thing that struck me when I took the Aurora BGA 8×42’s out of the box to review was that they felt substantial. They were very comfortable in the hand and looked attractive too. The second thing I noticed was the clarity of the image when I eagerly placed them to my eyes. So, I ran out of the door straight to my beloved local patch Wormwood Scrubs in west London, to try them out. I was pleased with the colour contrast, image clarity and the amazing resolution.

As you can imagine, being The Urban Birder means that a lot of my time is spent in urbanity – namely London and in particular at my local patch. So to my mind, the only way to test the Opticron Aurora BGA 8 x 42 was to take them with me everywhere both day and night for a week. Partially to get a feel for them and partially to see what species of birds I would see with them. I even slung them on my bed-head every night when I went to sleep – well, George Best used to sleep with a football!

The Week

Monday – I had a meeting at 10am so that curtailed my daily morning trip to Wormwood Scrubs. Instead, it was a quick scan up my street that resulted in a fleeting glance of my resident Dunnock. I was pleased with the image in the bins. The shuffling Dunnock looked crisp and clear.

Later that afternoon, I stole an hour to twitch a Firecrest that had been reported locally at Kensal Green Cemetery. The light was quite dull due to the impending rain clouds but despite that I was happy with the bright views I had of several of the common tit species, various corvids, an obliging drumming male Great Spotted Woodpecker and of course, the cracking female Firecrest I had sought.

Tuesday – Dawn saw me seated on a bench at The Scrubs scanning the skies for early migrants. Using the Aurora’s was already feeling like second nature. For my troubles I watched a pair of Canada Geese honk by, around 60 Carrion Crows and 3 Stonechats including a couple of gorgeous males.

Wednesday – My little flock of Stonechats had increased to at least 10 roving birds. I struggled to keep them all in vision at the same time as I celebrated the fact that this was the largest gathering of this heathland species I’d ever seen on my patch.

Later in the day, whilst in between meetings in central London, I snuck out into a fairly quiet square where I scanned the skies to count the passing gulls. I became aware of a small passerine dip onto a nearby rooftop. Thinking that I may have seen a Black Redstart, or rarer still a House Sparrow I employed my Aurora’s. When I focussed on it sitting quietly on a TV aerial I quickly realised that I was looking at a Pied Wagtail. Ah well!

Thursday – This was a complete washout thus there wasn’t much action. My Aurora’s and I jumped on a plane later in the evening destined for a long weekend in Valencia, eastern Spain. When I arrived at my B&B outside the city a quick stroll quickly clocked up singing Nightingale and Cetti’s Warbler.

Friday – Got up early and drove down to Albufera de Valencia, an area of wetlands to the south of Valencia, to watch multitudes of egrets and herons leave their roosts to head out to their feeding areas. Scanning the fields in the bright sunlight revealed tens of Gull-billed Terns scouting over the churned soil and Collared Pratincoles swirling around catching insects. It was in this bright light that the Aurora’s really shone as the images were absolutely pristine.

Saturday – I spent the morning back at the wetlands where I discovered migrants in the varying shapes of Garganey, Common Tern, Pied Flycatcher, Willow Warbler and a magnificent Black Stork that drifted overhead. In brilliant sunshine I had blinding views of around 200 nesting Black-headed Gulls and 6 plus Mediterranean Gulls from the hide overlooking the tern island. Best of all, I had incredible close-up views of a pair of obliging Slender-billed Gulls that gave me a great opportunity for some close focussing.

Sunday – I took a 130km drive further south to the ex pat, ex criminal haven known to us as Benidorm to watch Manchester United play Liverpool in a random seaside bar. On the way down I had to pull over to watch a Booted Eagle pass over being mobbed by a crow. United won and I drove back a happy man!

Monday – flight back to Blighty.

The verdict? I was very impressed. They are sleek, attractive and damn good! Go get a pair!

David Lindo

The Urban Birder

David Lindo is The Urban Birder. A lifelong birder, he is broadcaster having appeared on Springwatch and is a presenter on BBC1’s popular primetime The One Show. He is also a regular on BBC Radio London and Radio 4. David writes for various website and publications including the RSPB’s Birds Magazine and the popular monthly, Bird Watching Magazine. When not flirting with the media, you will find him birding at his west London local patch that he calls his ‘garden’ – Wormwood Scrubs.

 

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Opticron Vista EX 10×50 Binoculars

Questions I was asking myself before testing these binoculars was. What do you get for £59.00. What will be wrong with them. What corners will have been cut to sell at this price. Believe me, it just took one look through them to dismiss my fears

First thing you will notice is how light they feel in the hands. Secondly and most important is the clear view you get. These are well up there with the Helios Field masters at a similar price.

You dont get a wide field of view like many more compact binoculars, but the image is bright, clear and has minimal chromatic aberration. Perfect for general use and astronomy.

As with many porro prism binoculars you do not get close focus, but will suffice for looking at birds in your back garden.

Handling is very easy with a large focus wheel and smooth dioptre adjustment. The rubber body really feels the part, making them secure in the hands

Eye cups are fold down, but this also helps keep the price low. Prisms are BaK-4

So if you are looking for a no thrills pair of practical binoculars that will do the job for under £60, then go for it. You wont be disappointed.

Buy Opticron Vista EX binoculars online here (Now discontinued)

 

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Visionary U 8×22 binoculars

I must admit these are a personal favorite of mine in the size of binocular.

Firstly there are a few minor niggles, which means they are not suited to every one. Although the eye cups fold down, they are not suited for spectacle wearers. Also the focus wheel and dioptre adjustment can be a little stiff. Not ideal if this kind of thing is an issue

Putting the above aside, what you get is a super little pair of binoculars that will perform as well as many 8x30s in a similar price bracket. Yet the weight is only 165g !

The wide 136m field of view is incredibly sharp and bright considering the small 22mm lenses.

Small enough to go in a shirt pocket, there is no excuse not to take them anywhere.

  • Specs
  • Multi Coated bright optics
  • BaK-4 prisms
  • Weight 165g
  • Length 85mm
  • Width 92mm
  • Height 39mm
  • IPD 60 ~ 70mm
  • Field 136m @ 1000m
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Visionary Indonea 8×25 binoculars

Space age looking binoculars from Visionary. A new twist on a familiar design without sacrificing optical quality

First thing you will notice is how attractive they are. The sleek design should appeal to the younger user as well as the seasoned birdwatcher

Starting off with the image quality.  A common problem with many smaller binoculars is the fall off in quality near the edges. No such problem here, with the flat field giving you in my opinion some of the best edge of field sharpness I,ve seen in this price range.

Unlike many compact roof prism designs, the porro prism Indonea,s give a truly bright image for such a small pair.

Eye cups twist out, but I preferred them in, even with glasses on.

One minor gripe, that you will soon get used to is the dioptre adjustment on the centre wheel next to the focus wheel. You may tend to move it by accident while you are focusing. With a little practice you will get around this. 

Although at 440g they are not the lightest in class, they are still perfect for carrying on long hikes.

  • Specs
  • Weight 440g
  • Length 110mm
  • Width 118mm
  • Height 49mm
  • IPD 57 ~ 74mm
  • Field of view 119m @ 1000m
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Visionary Inara 9×36 binoculars

 

What you don’t get with these binoculars is an ultra compact lightweight design. What you do get is a premium pair of binoculars, solidly built and capable of withstanding the odd knock or two.

As you would expect in this price range, you get fully multi coated optics, phase corrected prisms and nitrogen waterproofing.

Handling is excellent, with a rubber covered body, large focusing wheel and silky smooth twist out eye cups.

Although the quality of image is very good, you will find your self constantly adjusting the focus, as there is a small sweet spot of sharp focus. I am assured by the supplier that this is not the case with the 7.5 x 36 version. For this reason, the 9×36 may not suit the beginner.

9×36 is an unusual combination, and will help bridge the gap between 32mm and 42mm binoculars.

On testing I found that accurate setting of the dioptre adjustment makes a big difference to the quality of image.

On the plus side, they are extremely  well constructed. Much better than many others in this class, and they will last for many years.

  • Specs
  • Magnification 9x
  • Lens size 36mm
  • Field of view 130m @ 1000m
  • Width 108mm
  • Height 56mm
  • IPD 58 ~ 74mm
  • Field 110m
  • Weight 565g
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How To Hand Hold Large Binoculars

If a tripod, mono pod or other steadying device is not available, there is a simple trick to help hand hold large binoculars relatively steady when out in the field.

Its simply a question of balance. With binoculars that have larger lenses of 60mm or more you will find them very front heavy. When you try to hold them near the eyepiece end in the conventional manner, you will find them a strain to hold.

To get round this, its simply a question of balance. Once you have set the focus, try holding them half way down, or even right at the end where the main lenses are. Its a question of finding where they balance in your hands without leaning forwards or backwards.

Using this technique, I have found hand holding 60-70mm binoculars for long periods very easy. Even trying 90 – 100mm binoculars weighting 4.5kg I found I could hold them steady for short periods.

This is more useful for terrestrial observing rather than astronomy.

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Averted Vision

Averted Vision is an easy technique that allows faint objects to be seen through binoculars, telescopes and even the naked eye. This ideal for viewing faint astronomical targets and for the nature observer, improves low light dusk and dawn observations.

To use this technique, simply place the target in the centre of view as normal. But then don’t look directly at the object. Instead look at the edge of field. Once you have done this the object will pop out and suddenly become brighter

For astronomy there are claims this can brighten an object by 3 or 4 magnitudes. I find it very useful on planetary nebulae and globular clusters

For the nature observer it may help bring out details in dark woods or at the bottom of read beds in low light conditions.

Why not give it a go. Its costs nothing to try

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Hawke Optics Nature Trek 7×30 binoculars

 

I was excited at the prospect at looking through the Nature Trek 7x30s and was certainly not disappointed. These beautiful little binoculars prove than power is,nt everything. The lightweight design and clear optics will appeal to many users

If ever there was a pair of binoculars to bridge the gap between compacts and mid sized binoculars, these would be well up there near the top of the tree.

Despite being only 7x magnification, they are more than capable of picking out distant objects when out in the field. An over sized focusing wheel and chunky twist eye cups make for ease of use, with or without glasses. Weighing less than 500g, they ultra lightweight for a porro prism design.

Nitrogen gas filled for use in all conditions. Fully multi coated optics and BaK-4 prisms give a bright image on par with many 42mm roof prism binoculars. Low light performance is also better than expected. A wide 143 field of view makes tracking moving targets a breeze.

Complete with soft case, lens caps, neck strap, cleaning cloth and 10 years warranty

A low price of just £69.95 makes them a very attractive buy

  • Magnification 7x
  • Objective diameter 30mm
  • Field of view 143m @ 1000m
  • Close focus 2.5m
  • Eye Relief 17.6mm
  • Weight £69.95

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